Had a bad night’s sleep? Drinking more water could help you feel better

New US research has found that not getting enough sleep could lead to dehydration the next day, possibly affecting mental and physical performance.

Carried out by researchers at Penn State University, the new study looked at more than 20,000 American and Chinese adults over the age of 20 to assess how sleep may affect hydration status and risk of dehydration.

The participants were asked to report on their sleeping habits, as well as provide urine samples which were analysed for biomarkers of hydration.

The findings, published in the journal Sleep on Monday, showed that adults who sleep just six hours per night had a higher chance of being dehydrated compared to those who slept eight hours. Participants who reported sleeping six hours had significantly more concentrated urine and a 16 to 59% higher chance of being inadequately hydrated.

The researchers suggest that the body’s hormonal system, which regulates hydration, could be responsible. A hormone called vasopressin is released throughout the day, as well as during the night, to help regulate the body’s hydration status. Shorter sleep may disrupt the release of the hormone, thereby affecting hydration.

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